| 概念设计中的三维公差与结构同步设计研究 |
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| 引用本文： | 任怀伟,黄克正,孙晓燕,张勇. 概念设计中的三维公差与结构同步设计研究[J]. 中国机械工程, 2008, 19(2): 226-230 |
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| 作者姓名： | 任怀伟 黄克正 孙晓燕 张勇 |
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| 作者单位： | 山东大学,济南,250061 |
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| 摘 要： | 为支持产品概念设计的多结构方案优选和成本优化，提出了在概念设计阶段进行公差设计的思想。给出了指导概念结构设计的生长型设计过程模型，应用旋量对功能表面间的几何约束进行分析；在公差表示模型的基础上，自动选择基准框架，生成三维公差链并进行设计计算；开发了相应的软件系统支持设计过程。应用实例表明，公差与结构同步设计能有效地减少设计方案的反复修改，提高了设计的效率和质量，对CAD/CAM集成具有重要意义。
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| 关 键 词： | 生长型设计 约束分析 公差设计 基准选择 |
| 文章编号： | 1004-132X（2008）02-0226-05 |
| 收稿时间： | 2006-11-24 |
| 修稿时间： | 2006-11-24 |
A Synchronous Design Approach for 3D Tolerance and Structure in Conceptual Design Process |
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| Ren Huaiwei,Huang Kezheng,Sun Xiaoyan,Zhang Yong. A Synchronous Design Approach for 3D Tolerance and Structure in Conceptual Design Process[J]. China Mechanical Engineering, 2008, 19(2): 226-230 |
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| Authors: | Ren Huaiwei Huang Kezheng Sun Xiaoyan Zhang Yong |
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| Abstract: | For supporting the multi-structure-scheme selection in conceptual design process and the product cost optimization,the tolerance design was carried out in the conceptual design state. The growth design methodology and its model were presented and used to direct the product structural design. The geometrical constraints were formed between the functional surfaces composing product conceptual structure and analyzed by using screw method. Based on the tolerance representation model, the tolerance reference frame was selected automatically and generated three-dimensional tolerance chain. The software was developed for supporting this design process. The example indicates that the synchronous design approach for 3D tolerance and structure can reduce design modification, improve design efficiency and qualification and have significance for CAD/CAM integration. |
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| Keywords: | growth design constraint analysis dimensional tolerance design selection of reference frame |
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